During and in the aftermath of the financial crisis of 20072009, planned investment fell substantially despite significant decreases in the real interest rate. What factors related to the planned investment function could explain this?

If credit cards were made illegal by congressional legislation, what would happen to velocity? Explain your answer.

In Keyness analysis of the speculative demand for money, what will happen to money demand if people suddenly decide that the normal level of the interest rate has fallen? Why?

explain in paragraph format - 5-8 sentences per question